citroen traction avant monocoque
Citroen was an early adopter of the modified-monocoque “unit body” construction technique in the 1930s.
JD Laukkonen
JD Laukkonen turned wrenches in the north end of Seattle for a decade, so he's no stranger to the inner workings of modern automobiles. He has worked as a freelance writer since closing his shop in 2007, and he currently covers automotive technology for Lifewire.com.
